Shock absorber for motor vehicles



May 1,1923 1,453,785 J. O.-DELGADO SHOCK ABS bRBER FOR MOTOR VEHICLES Filed April 4, 1922 2 She ets-Sheet 1' l IAIl/E/I/TOR Mn 0. Feel ado A FTOR/VEVS May. 1, 1923.

1,453,785 J. o. DELGADO SHOCK ABSORBER FOR MOTOR VEHICLES 2 Sheets-Sheet 2 Filed April 4, 1922 Arm/ rs 'To all whom it mag concern Patented May 1, 19213.

ua reo STATES JUANOLIVEROS nnLeAno, or EL rasqu'rnxasl Parent Corrine.

:SHOGK ABSORBER FOR MOTOR VEHICLES.

Application filed April 4,

.Shock Absorbers for Motor Vehicles,- of

which the following is a specification.

This invention relatesto a shock absorber for motor vehicles.

The object of the invention is to associate supplemental spring means with the ordinary leaf springs of a motor vehicle or the like, in such a manner that the supplemental springs will operate in unison with the leaf springs in absorbing shocks to which the same maybe subjected. j

It is also an important object of the invention that the supplemental springs be arranged to continuously take the load imposed upon the leaf springs and thus afford a yieldable sustaining, means for the leaf springs with the result of lessening the possibility of over burdening the same.

Other objects relating to details of construction willjhereinafter appear.

In carrying out the invention it is contemplated to use a semi-elliptical leaf spring of the ordinary construction and to arrange it beneath the vehicle body or chassis frame transversely thereof, and to connect each end thereof with theassociated'axle through a bell crank lever and to provide supplemental spring'means to resist the movement of the bell crank levers. I v

The present invention is particularly adapted for use in connection with the so called Ford type of motor vehicle and. so

shown by way of example in the accompanying drawings, in which Figure 1 is a rear end elevation of a motor vehicle of the type referred to and showing the application of the present invention,

Figure 2 is an enlarged perspective'view' of one of the bell crank levers used in connection with the rear spring suspension 1922. Serial No. 549,552. 1

p a y to Figures 1 and 2, 10 indicates 1 a rearflaxle housing or casing, 11 the 'rear supporting wheels and 12 the chassis frame In this instance a-pairof .bellc'rank levers B Y and B are 'fulcrumed" to the spring perches 13 carriedby the rear axle construc-' l tion 10. Thesespring perches are of well" known construction, and as-islalso known are provlded for connecting the rear spring of this type ofcar wlththerear axle.

tion 15 and the twocircular plate members 16. that'they are adapted to'receive a perch 13.

The bell crank lever B is specifically shown inFigure 2 and consists inxa hubpore tion 14 which is formed with a bearing por- Each circular plate portion 16 is provided with a central opening 17 and throughwhich a pin or boltmay be extended, said boltpassing through the. perch 1 3 and thus pivotally I connecting the bell crank lever B withthe perch. The hubportion 14 of the bell crank lever-B has also formed therewith an ex tension-18terminating in the arm 19 dis-I posed downwardly and at right angles thereto, andsaid arm 19fhavingformed therewith. an annular projection 20 which 'is' provided at its free end with an opening 21. The purpose of offsetting the arm 19 with relation to the hub llis' so that itlniay movev upward and downward withrespectto the axle housing 10 without interference there with. The other arm 22 of'the bell crank lever B is preferably of the shape shown and its outer end terminating'ina bearing sleeve 23 disposed at right angles to the arm.

The bell crank lever B is of substantially the same construction as the'bell crank lever B with the exception that its arms 24 and-25 extend from a different point of the. hub

portion 26. Also a pin-or bolt is used for. I

pivoting the hub portion 26 to the associated perch 13 in the manner described for the bell crank leverB.

Beneath the'chassis frame '12 at the rear end thereof there is'secured in a preferred manner the semi-elliptical spring.generally indicated by the reference character S. The oneen'd of the semi-elliptical spring is piv otallv connected to the arm 22 of the bell crank lever B by the means of" links or shackles as at 28, and the other end is simi-l' larly connected as at 29 to the arm 25 of bell crank lever B. Y

The arms 19 and 24 of the bell crank levers B and B respectively ar connected the I 110. i

by the means of the coil springs 29 and the rod 30. The coil springs 29 may be referred to as supplemental springs, and interposed in the rod 30 is a turnbuckle 31 for the purpose of adjusting the tension of the coil springs 29.

Referring to Figures 3 and i, 32 indicates a cross member which usually extends boneath the radiator of the type of automobile herein shown, and S indicates the froi'it spring. The perches 33 by which the'f ront spring stance. fulcrum the bell crank levers C and C. The perches 33 extend toward the supporting; wheels 34 and for this reason. the specific construction of the bell crank levers C and C must slightly differ to the con struction of the bell crank levers B and B used on the rear axle of the motor vehicle. The bell crank lever C is specifically shown in Figure a andas is seen its hub portion 35 has its bearing, portion 36 for the perch 33 formed on its opposite side when com pared with tie bell crank lever shown in Figure 2. Also suitable plates'37 are formed with the hub and provided with suitable openings as shown through which a pin or the like may be extended for pivotally connectinp; with associated perch The arms RS'and 39 of the bell crank lever C extend in such a direction that they o-pposethe arms ll) and ell respectively of the bell crank lever C. The arms 39 and 41 are connected by the pair of rods 42 and the coil spring The coil spring 43 in this instance is the supplemental spring before referred lo and inthe rod 42 there is interposed a turnbuckl 4-4 for the purpose of adjusting the tension of the spring 43.

The operation of both front and rear spring suspension heretofore described is the 1 me. In describing this operation th rear .1 ring construction will be specifically referred to and which will also sutlice for the front spring construction.

is seen when the load imposed upon the spring 5% is transmitted directly to the coil springs These coil springs 29 may be adjusted by the means of the turnbuckle 31 to raise the spring S to the desired point. By this arrangement it is seen that the shock. imposed upon S will be absorbed in unison by the coil springs 29 or so called supplemental springs and the spring S. Also as is obvious as the spring S is subjected to :1 quick shock the yieldable connection between the arm 19 and Q lof the bell crank levers B and B respectively lessens the possibility of the spring S snapping under such a shock.

S is usually supported, in this inassgreo Furthermore by this construction the re bound of the spring Swill be gradual. Also it may be mentioned that by this particular spring suspension the possibility of the automobile or motor vehicle being over turned when turning a curve rapidly is greatly reduced.

It may be further mentioned that it is advisable that the springs S and S be of the same size and construction in order that uniformity may be had. In this instance where the Ford car is used it is well to discard the conventional rear spring of the car and substitute therefor a sprinn'of the same construction as the conventional front spring. it is the best arrangement.

ll hile I have shown and described the preferred form of my invention, I wish it to be understood that I am aware of the fact that the construction,combination and. arrangementof parts may be changed by those skilled in the art without departing from the spirit of the invention. indicated by the appended claims.

I claim i s 1. In an apparatus of the character described, in combination, an axle. a bell crank lever comprising a casting includingqa hub portion terminating at each end in a radially extending arm, said arms being disposed. at an angle to each other, and said bub portion being substantially semi-circular in shape adjacent its one end, a perch secured to the axle and extending upwardly therefrom. said perch havinga head adapted to Fitwithin the semi-circular portion of the bell crank hub, and means for pi-votally connectportion of the inn the perch to said hub bell crank lever.

In an apparatus of the character described in combination, an axle, a bell crank lever comprising acasting including a hub portion terminating at each end in a radially extending arm. said arms being disposed at an angle to each other, and said hub portion being sul'istantially semi-circular in shape adjacent its one end, a porch secured to the axle and extending upwardly therefrom, said perch having a head adapted to fitwithin the semi-circular portion of the bell crank hub, and a transverse plate formation at each nd of the semi-circular portion of the bell crank hub adapted to receive therebetween the head of said perch, and a pin extending through said perch and said openings in said plate formations whereby to pivotally connect the perch to said bell crank hub.

J UAN OLIV EROS DELGADO.

has been found by experience that this 

